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- <div class="titlepage"><div><div><h3 class="title">
- <a name="boost_test.tests_organization.tests_grouping"></a><a class="link" href="tests_grouping.html" title="Grouping tests into logical units by labels">Grouping
- tests into logical units by labels</a>
- </h3></div></div></div>
- <p>
- Test-suites and test cases define a hierarchy called the <span class="emphasis"><em>test tree</em></span>,
- which is useful for organizing tests. These organization defines an implicit
- grouping of test unit following the <span class="emphasis"><em>subtrees</em></span> extracted
- from the test tree, by just designing a node on the test tree. Being able
- to design a group of tests enable, for instance, to execute this group of
- test only (covered in <a class="link" href="../runtime_config/test_unit_filtering.html" title="Test unit filtering">this
- section</a>).
- </p>
- <p>
- However, the subtrees might not reflect all the possible grouping of test
- units the usage of the test module would require <a href="#ftn.boost_test.tests_organization.tests_grouping.f0" class="footnote" name="boost_test.tests_organization.tests_grouping.f0"><sup class="footnote">[5]</sup></a>.
- </p>
- <p>
- The <span class="emphasis"><em>Unit Test Framework</em></span> provides a flexible way of grouping
- test units by the use of <span class="emphasis"><em>labels</em></span>, using the decorator
- <a class="link" href="../utf_reference/test_org_reference/decorator_label.html" title="label (decorator)"><code class="computeroutput"><span class="identifier">label</span></code></a>. It is possible to associate
- more than one label with a test unit.
- </p>
- <p>
- Labels can be associated to test cases and test suites. For the latter, the
- label is inherited by all the nodes in the subtree defined by the labelled
- test suite: decorating a test suite with label <code class="computeroutput"><span class="identifier">L</span></code>
- is equivalent to decorating every test unit inside with <code class="computeroutput"><span class="identifier">L</span></code>.
- </p>
- <div class="tip"><table border="0" summary="Tip">
- <tr>
- <td rowspan="2" align="center" valign="top" width="25"><img alt="[Tip]" src="../../../../../../doc/src/images/tip.png"></td>
- <th align="left">Tip</th>
- </tr>
- <tr><td align="left" valign="top"><p>
- it is possible to list all labels of a test module from the CLI by using
- the <a class="link" href="../utf_reference/rt_param_reference/list_labels.html" title="list_labels"><code class="computeroutput"><span class="special">--</span><span class="identifier">list_labels</span></code></a>
- switch
- </p></td></tr>
- </table></div>
- <h6>
- <a name="boost_test.tests_organization.tests_grouping.h0"></a>
- <span class="phrase"><a name="boost_test.tests_organization.tests_grouping.example_descr"></a></span><a class="link" href="tests_grouping.html#boost_test.tests_organization.tests_grouping.example_descr">Example:
- decorator label</a>
- </h6>
- <div class="informaltable"><table class="table">
- <colgroup><col></colgroup>
- <thead><tr><th>
- <p>
- Code
- </p>
- </th></tr></thead>
- <tbody><tr><td>
- <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="preprocessor">#define</span> <span class="identifier">BOOST_TEST_MODULE</span> <span class="identifier">decorator_04</span>
- <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">test</span><span class="special">/</span><span class="identifier">included</span><span class="special">/</span><span class="identifier">unit_test</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span>
- <span class="keyword">namespace</span> <span class="identifier">utf</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">unit_test</span><span class="special">;</span>
- <span class="identifier">BOOST_AUTO_TEST_CASE</span><span class="special">(</span><span class="identifier">test1</span><span class="special">,</span>
- <span class="special">*</span> <span class="identifier">utf</span><span class="special">::</span><span class="identifier">label</span><span class="special">(</span><span class="string">"l1"</span><span class="special">))</span>
- <span class="special">{</span>
- <span class="identifier">BOOST_TEST</span><span class="special">(</span><span class="keyword">false</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="identifier">BOOST_AUTO_TEST_CASE</span><span class="special">(</span><span class="identifier">test2</span><span class="special">,</span>
- <span class="special">*</span> <span class="identifier">utf</span><span class="special">::</span><span class="identifier">label</span><span class="special">(</span><span class="string">"l1"</span><span class="special">)</span>
- <span class="special">*</span> <span class="identifier">utf</span><span class="special">::</span><span class="identifier">label</span><span class="special">(</span><span class="string">"l2"</span><span class="special">))</span>
- <span class="special">{</span>
- <span class="identifier">BOOST_TEST</span><span class="special">(</span><span class="keyword">false</span><span class="special">);</span>
- <span class="special">}</span>
- <span class="identifier">BOOST_AUTO_TEST_CASE</span><span class="special">(</span><span class="identifier">test3</span><span class="special">)</span>
- <span class="special">{</span>
- <span class="identifier">BOOST_TEST</span><span class="special">(</span><span class="keyword">false</span><span class="special">);</span>
- <span class="special">}</span>
- </pre>
- </td></tr></tbody>
- </table></div>
- <div class="informaltable"><table class="table">
- <colgroup><col></colgroup>
- <thead><tr><th>
- <p>
- Output
- </p>
- </th></tr></thead>
- <tbody><tr><td>
- <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="special">></span> <span class="identifier">decorator_04</span>
- <span class="identifier">Running</span> <span class="number">3</span> <span class="identifier">test</span> <span class="identifier">cases</span><span class="special">...</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">8</span><span class="special">):</span> <span class="identifier">error</span><span class="special">:</span> <span class="identifier">in</span> <span class="string">"test1"</span><span class="special">:</span> <span class="identifier">check</span> <span class="keyword">false</span> <span class="identifier">has</span> <span class="identifier">failed</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">15</span><span class="special">):</span> <span class="identifier">error</span><span class="special">:</span> <span class="identifier">in</span> <span class="string">"test2"</span><span class="special">:</span> <span class="identifier">check</span> <span class="keyword">false</span> <span class="identifier">has</span> <span class="identifier">failed</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">20</span><span class="special">):</span> <span class="identifier">error</span><span class="special">:</span> <span class="identifier">in</span> <span class="string">"test3"</span><span class="special">:</span> <span class="identifier">check</span> <span class="keyword">false</span> <span class="identifier">has</span> <span class="identifier">failed</span>
- <span class="special">***</span> <span class="number">3</span> <span class="identifier">failures</span> <span class="identifier">are</span> <span class="identifier">detected</span> <span class="identifier">in</span> <span class="identifier">the</span> <span class="identifier">test</span> <span class="identifier">module</span> <span class="string">"decorator_04"</span>
- <span class="special">></span> <span class="identifier">decorator_04</span> <span class="special">--</span><span class="identifier">run_test</span><span class="special">=</span><span class="error">@</span><span class="identifier">l1</span>
- <span class="identifier">Running</span> <span class="number">2</span> <span class="identifier">test</span> <span class="identifier">cases</span><span class="special">...</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">8</span><span class="special">):</span> <span class="identifier">error</span><span class="special">:</span> <span class="identifier">in</span> <span class="string">"test1"</span><span class="special">:</span> <span class="identifier">check</span> <span class="keyword">false</span> <span class="identifier">has</span> <span class="identifier">failed</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">15</span><span class="special">):</span> <span class="identifier">error</span><span class="special">:</span> <span class="identifier">in</span> <span class="string">"test2"</span><span class="special">:</span> <span class="identifier">check</span> <span class="keyword">false</span> <span class="identifier">has</span> <span class="identifier">failed</span>
- <span class="special">***</span> <span class="number">2</span> <span class="identifier">failures</span> <span class="identifier">are</span> <span class="identifier">detected</span> <span class="identifier">in</span> <span class="identifier">the</span> <span class="identifier">test</span> <span class="identifier">module</span> <span class="string">"decorator_04"</span>
- <span class="special">></span> <span class="identifier">decorator_04</span> <span class="special">--</span><span class="identifier">run_test</span><span class="special">=</span><span class="error">@</span><span class="identifier">l2</span>
- <span class="identifier">Running</span> <span class="number">1</span> <span class="identifier">test</span> <span class="keyword">case</span><span class="special">...</span>
- <span class="identifier">test</span><span class="special">.</span><span class="identifier">cpp</span><span class="special">(</span><span class="number">15</span><span class="special">):</span> <span class="identifier">error</span><span class="special">:</span> <span class="identifier">in</span> <span class="string">"test2"</span><span class="special">:</span> <span class="identifier">check</span> <span class="keyword">false</span> <span class="identifier">has</span> <span class="identifier">failed</span>
- <span class="special">***</span> <span class="number">1</span> <span class="identifier">failure</span> <span class="identifier">is</span> <span class="identifier">detected</span> <span class="identifier">in</span> <span class="identifier">the</span> <span class="identifier">test</span> <span class="identifier">module</span> <span class="string">"decorator_04"</span>
- </pre>
- </td></tr></tbody>
- </table></div>
- <div class="footnotes">
- <br><hr style="width:100; text-align:left;margin-left: 0">
- <div id="ftn.boost_test.tests_organization.tests_grouping.f0" class="footnote"><p><a href="#boost_test.tests_organization.tests_grouping.f0" class="para"><sup class="para">[5] </sup></a>
- For instance, selecting two siblings without the parent node
- </p></div>
- </div>
- </div>
- <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
- <td align="left"></td>
- <td align="right"><div class="copyright-footer">Copyright © 2001-2019 Boost.Test
- contributors<p>
- Distributed under the Boost Software License, Version 1.0. (See accompanying
- file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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